The Underground Twitter Economy: Buying And Selling Followers

Security firm Barracuda Labs went undercover to infiltrate the Twitter follower black market, and they compiled their findings into an info-packed infographic.
The firm created three Twitter accounts...
in May 2012. They used eBay and a website to purchase between 20,000 and 70,000 followers for each of these accounts, and then analyzed each of the followers’ profiles and tweets!